Title:
セルロースエーテルの製造方法
Document Type and Number:
Japanese Patent JP5785507
Kind Code:
B2
Abstract:
When a combination of pulps having different alkali metal hydroxide solution absorption rates is as a raw material, contact conditions such as a contact temperature and a contact time have to be changed frequently, depending on the absorption rate of pulps currently processed, thereby causing a problem of reduced productivity. For solving the problem, provided is a method for producing alkali cellulose, comprising at least the steps of: bringing two or more types of pulps having different alkali metal hydroxide solution absorption rates into contact with an alkali metal hydroxide solution to obtain a contact product; and draining the contact product, wherein the highest absorption rate is not more than 4.0 times as fast as the lowest absorption rate.
Inventors:
Mitsuo Narita
Application Number:
JP2012034021A
Publication Date:
September 30, 2015
Filing Date:
February 20, 2012
Export Citation:
Assignee:
Shin-Etsu Chemical Co., Ltd.
International Classes:
C08B11/08; C08B1/08
Domestic Patent References:
| JP2009155534A | ||||
| JP2009173907A | ||||
| JP53012954B1 |
Attorney, Agent or Firm:
Shoichi Okuyama
Arihara Koichi
Matsushima Tetsuo
Hidefumi Kawamura
Ayako Nakamura
Satoshi Morimoto
Kyoko Tsunoda
Arihara Koichi
Matsushima Tetsuo
Hidefumi Kawamura
Ayako Nakamura
Satoshi Morimoto
Kyoko Tsunoda
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